<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>主页</title>
    <link href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
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</head>
<body>
<div class="panel panel-primary">
    <div class="header-panel">

    </div>
    <div class="panel-body">
        <h1 class="panel-title">系统异常，请稍后再试</h1>
    </div>
</div>
</body>
</html>